18978045 (number)

18978045 is an odd 8-digits composite number following 18978044 and preceding 18978046. In scientific notation, it is written as 1.8978045 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 9794880 positive integers (up to 18978045) that are relatively prime to 18978045.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred seventy-eight thousand forty-five

Notation

Scientific notation 1.8978045 × 10^7
Engineering notation 1.8978045 × 10^6

Prime Factorization of 18978045

Prime Factorization 5 × 31 × 3 × 40813

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18978045
Product of the distinct prime numbers

The prime factorization of 18978045 is 5 × 31 × 3 × 40813. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 10, 80, 55, 907, 449, 8192, 7838, 77435, 35257, 285632, 837886, 1732431, 3550637, 90135229, 61007998, 669849970, 698944141, 9427575199, 4263124919

Basic calculations (n = 18978045)

Multiplication

n×y
n×2 37956090
n×3 56934135
n×4 75912180
n×5 94890225

Division

n÷y
n÷2 9489022.5
n÷3 6326015
n÷3 4744511.25
n÷5 3795609

Exponentiation

ny
n2 360166192022025
n3 6.8352501996726E+21
n4 1.2971968587565E+29
n5 2.4618260359339E+36

Nth Root

y√n
2√n 4356.3798043789
3√n 266.73734498078
4√n 66.002877243184
5√n 28.552904608732

Divisors of 18978045

1, 3, 5, 15, 31, 93, 155, 465, 40813, 122439, 204065, 612195, 1265203, 3795609, 6326015, 18978045

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18978044
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18978045 can be divided by 16 positive divisors. The sum of these divisors (counting 18978045) is 1, the average is 0.0625.

Base conversion 18978045

Base System Value
2 Binary 1001000011001010011111101
3 Ternary 1022201011222120
4 Quaternary 1020121103331
5 Quinary 14324244140
6 Senary 1514433153
8 Octal 110312375
10 Decimal 18978045
12 Duodecimal 64327b9
16 Hexadecimal 12194fd
20 Vigesimal 5ic525
36 Base36 barjx

Cryptographic Hash Functions

md5 1b44354e5d4a251a41a670bf29589580
sha1 4e3f46a732c6d77b087d6813e2793bea1cb5f027
sha256 e694d29c9eee9ec94918cf688f64a436195cd9cff27693a0a533bcc670253303
sha512 6f74326e9483a1d6802496696978dc59d7afacb130d525f4d067e60451435dae72d67bdb5a524e5f1d85b8b9fed598bf76e97631fb96d61db22583d19b75af4f
ripemd-160 b1457d0ef215e727e22de01859c6990169e8e20f

18978045 as geometric shapes

Circle

Radius = n
Diameter 37956090
Circumference 119242573.50299
Area 1.1314954629278E+15

Sphere

Radius = n
Volume 2.8631429083653E+22
Surface area 4.5259818517112E+15
Circumference 119242573.50299

Square

Length = n
Perimeter 75912180
Area 360166192022025
Diagonal 26839008.626327

Cube

Length = n
Surface area 2160997152132150
Volume 6.8352501996726E+21
Space diagonal 32870938.168328

Equilateral Triangle

Length = n
Perimeter 56934135
Area 1.5595653593769E+14
Altitude 16435469.084164

Triangular Pyramid

Length = n
Surface area 1.5595653593769E+14
Volume 8.0554196121587E+20
Height 8946336.2087756